684332743 has 2 divisors, whose sum is σ = 684332744. Its totient is φ = 684332742.

The previous prime is 684332729. The next prime is 684332791. The reversal of 684332743 is 347233486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 684332743 - 2⁵ = 684332711 is a prime.

It is a super-2 number, since 2×684332743² = 936622606283808098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 684332696 and 684332705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (684330743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342166371 + 342166372.

It is an arithmetic number, because the mean of its divisors is an integer number (342166372).

Almost surely, 2^684332743 is an apocalyptic number.

684332743 is a deficient number, since it is larger than the sum of its proper divisors (1).

684332743 is an equidigital number, since it uses as much as digits as its factorization.

684332743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 40.

The square root of 684332743 is about 26159.7542610782. The cubic root of 684332743 is about 881.2296613652.

The spelling of 684332743 in words is "six hundred eighty-four million, three hundred thirty-two thousand, seven hundred forty-three".